<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    .box {
    width: 200px;
    height: 200px;
    background-color: rgb(187, 150, 156);
   }
  </style>
  
</head>
<body>
  <!-- v-bind对于样式控制的增强-操作style
   语法：  :style="样式对象" -->
   <!-- 适用场景：某个具体属性的动态设置 -->
   <div id="app">
    <div class="box" :style="{width:'400px',height:'400px','background-color':'green'}"></div>
  </div>
  <script src="https://cdn.jsdelivr.net/npm/vue@2.7.16/dist/vue.js"></script>
  <script>
    const app = new Vue({
      el: '#app',
      data: {

      }
    })
  </script>
</body>
</html>